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GafChromic XR‐QA film in testing panoramic dental radiography
The location and field size of the incident X‐ray beam in panoramic dental radiography cannot be ascertained visually most of the time. However, these parameters are needed for quality control and dosimetry determination. To alleviate this problem, we tested GafChromic XR‐QA film on two panoramic sy...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2007
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722413/ https://www.ncbi.nlm.nih.gov/pubmed/17592467 http://dx.doi.org/10.1120/jacmp.v8i2.2457 |
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author | Chu, Robert Y.L. Lam, Tin Liang, Yongguang |
author_facet | Chu, Robert Y.L. Lam, Tin Liang, Yongguang |
author_sort | Chu, Robert Y.L. |
collection | PubMed |
description | The location and field size of the incident X‐ray beam in panoramic dental radiography cannot be ascertained visually most of the time. However, these parameters are needed for quality control and dosimetry determination. To alleviate this problem, we tested GafChromic XR‐QA film on two panoramic systems. For each system, we used the length of a cross‐sectional image of the incident beam and the exposure measurement with a pencil ion chamber to compute the dose–area product. The result was confirmed by direct analysis of a dose distribution on a film. Placement of the ion chamber was determined by the latter images. The GafChromic XR‐QA version of radiochromic film has thus been demonstrated to usefully complement a pencil ion chamber in the testing of a panoramic radiography system. PACS numbers: 87.52.Df, 87.59Bh, 87.66.Cd, 87.66Jj |
format | Online Article Text |
id | pubmed-5722413 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2007 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-57224132018-04-02 GafChromic XR‐QA film in testing panoramic dental radiography Chu, Robert Y.L. Lam, Tin Liang, Yongguang J Appl Clin Med Phys Medical Imaging The location and field size of the incident X‐ray beam in panoramic dental radiography cannot be ascertained visually most of the time. However, these parameters are needed for quality control and dosimetry determination. To alleviate this problem, we tested GafChromic XR‐QA film on two panoramic systems. For each system, we used the length of a cross‐sectional image of the incident beam and the exposure measurement with a pencil ion chamber to compute the dose–area product. The result was confirmed by direct analysis of a dose distribution on a film. Placement of the ion chamber was determined by the latter images. The GafChromic XR‐QA version of radiochromic film has thus been demonstrated to usefully complement a pencil ion chamber in the testing of a panoramic radiography system. PACS numbers: 87.52.Df, 87.59Bh, 87.66.Cd, 87.66Jj John Wiley and Sons Inc. 2007-04-19 /pmc/articles/PMC5722413/ /pubmed/17592467 http://dx.doi.org/10.1120/jacmp.v8i2.2457 Text en © 2007 The Authors. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/3.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Medical Imaging Chu, Robert Y.L. Lam, Tin Liang, Yongguang GafChromic XR‐QA film in testing panoramic dental radiography |
title | GafChromic XR‐QA film in testing panoramic dental radiography |
title_full | GafChromic XR‐QA film in testing panoramic dental radiography |
title_fullStr | GafChromic XR‐QA film in testing panoramic dental radiography |
title_full_unstemmed | GafChromic XR‐QA film in testing panoramic dental radiography |
title_short | GafChromic XR‐QA film in testing panoramic dental radiography |
title_sort | gafchromic xr‐qa film in testing panoramic dental radiography |
topic | Medical Imaging |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722413/ https://www.ncbi.nlm.nih.gov/pubmed/17592467 http://dx.doi.org/10.1120/jacmp.v8i2.2457 |
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